Karantanas Apostolos H, Drakonaki Eleni E
Department of Radiology, University of Crete, Heraklion, Greece.
Semin Musculoskelet Radiol. 2011 Jul;15(3):281-300. doi: 10.1055/s-0031-1278427. Epub 2011 Jun 3.
Due to the pattern of its blood supply, the femoral head is particularly vulnerable to avascular necrosis (AVN). Nontraumatic AVN is a devastating disorder affecting young patients, and despite treatment it normally follows a progressive course toward a destructive osteoarthropathy. Magnetic resonance (MR) imaging is currently used in major classification systems solely for early detection of femoral head AVN when plain radiographs are normal. More recent data have shown that MR imaging may improve staging, investigate radiologically occult collapse, depict other causes of disability and pain, assess prognosis, and evaluate treatment. This article reviews the established and evolving role of MR imaging in patients at risk or with known femoral head AVN.
由于其血液供应模式，股骨头特别容易发生缺血性坏死（AVN）。非创伤性AVN是一种影响年轻患者的破坏性疾病，尽管进行了治疗，但通常会朝着破坏性骨关节炎的方向发展。目前，在主要分类系统中，当X线平片正常时，磁共振（MR）成像仅用于早期检测股骨头AVN。最新数据表明，MR成像可能会改善分期、研究放射学隐匿性塌陷、描绘残疾和疼痛的其他原因、评估预后以及评估治疗效果。本文综述了MR成像在有股骨头AVN风险或已知患有股骨头AVN的患者中已确立的和不断演变的作用。
